Earbud



FIG. 1 is a rear, top and left side perspective view of an earbud showing the new design; a mirror image left earbud is evident from the earbud shown;

FIG. 2 is a left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate portions of the earbud and form no part of the claimed design. 

CLAIM The ornamental design for an earbud, substantially as shown and described. 